He "couldn't" be at his best at 194lbs. to begin with. This guy runs around the ring against 175lb guys who can't punch what kind of a showing is he going to put on against heavies?
Is this one of the "fantasy Fights" at Disney Land? Ray.

Ray, i'm just saying what would happen if he followed the route of Roy Jones Jr and, a better example, Floyd Patterson.

Both were middleweight/light heavyweights who moved up to Heavyweight. They fought in the 190-200lb range, which had been a heavyweight weight for a long time. Actually RJJ fought at Heavyweight at 194lbs, so I assume you can still campaign for Heavyweight at that weight.

If Hopkins was 29-33 years old and bulked up to the 195lbs rounds, could he defeat the Klitschkos in a heavyweight match-up. Or a Klitschko. That is all. It is a fantasy fights because it can never happen, but this is a discussion forum where people exchange opinions.

People are really silly. A 143 lber has the KO power to take out a heavyweight. You don't magically get a better chin due to your size. So no, the K Bros wouldn't wade through anyone's punches or not show defense because a good punch is a good punch. Heavyweights just have more weight behind theirs. That's it. Hopkins would have major trouble with the size difference though. That is where weightclasses really come into play. Weight is one factor, but the mass and space that heavyweights take up and at the rate they can move is extremely difficult to move with when you're smaller. I'm at 194 lbs right now. Could I knockout a Klitschko brother? Sure, if they let me and didn't defend for crap. I am sure most people who've learned how to punch could do it too. Ruiz is just an awful comparison to the physical advantages of people like the Klitschkos.